Unhappy Chappy

I have been struggling now for almost a month with telkom to have my line upgraded from 4mbps to 10mbps, I keep on calling and they keep on saying to me that I will receive my order number within 48 hours with no success. When I ask for reference they cant give me a reference, now this is so frustrating as I want to do business but cant, I feel like quiting my service with them as this is very poor service I get. The only time they call you back is once the issue is resolved, before that no come back